Pulsar manufactures a series of 20-inch flat- screen digital televisions. The quantity ...

  

Pulsar manufactures a series of 20-inch flat- screen digital televisions. The quantity x of these sets demanded each week is related to the wholesale unit price p by the equation: p = -0.006x + 180 The weekly cost incurred by Pulsar for producing x sets is: C(x) = 0.000002x^3 - 0.02x^2 + 120x + 60,000 dollars.
 

1) find the marginal cost function, C'(x)
2)  Compute the approximate cost of making the 173rd flat-screen digital television and interpret your answer in a complete sentence.
3) Find the revenue function ,R(x).
4) Compute R(100) and interpret your answer in a complete sentence